Answer:
To find the 40th term of the sequence, we first need to identify the pattern that generates the terms. We can see that each term is obtained by adding 4 to the previous term. So the sequence is an arithmetic sequence with a common difference of 4.
Using this information, we can find the formula for the nth term of the sequence using the formula for the nth term of an arithmetic sequence:
an = a1 + (n - 1)d
Where an is the nth term of the sequence, a1 is the first term, n is the term number, and d is a common difference.
In this case, we have a1 = 7 and d = 4. Substituting these values into the formula, we get:
an = 7 + (n - 1)4
Simplifying this expression, we get:
an = 4n + 3
Now we can use this formula to find the 40th term of the sequence:
a40 = 4(40) + 3
a40 = 160 + 3
a40 = 163
Therefore, the 40th term of the sequence is 163.
what is the ratio between yellow to red?
6 yellow = 5 green
4 green = 3 purple
5 purple = 2 red
A.3 to 1
B.4 to 1
C.5 to 1
D.6 to 1
The ratio between yellow to red is 1 to 2 or 1:2. Answer: not listed.
What is probability?
Probability is a measure of the likelihood of an event occurring. It is a number between 0 and 1, where 0 means the event is impossible and 1 means the event is certain to happen.
First, we can use the given information to find the ratio between green and yellow:
6 yellow = 5 green
=> green/yellow = 6/5
Next, we can use the given information to find the ratio between purple and green:
4 green = 3 purple
=> purple/green = 4/3
Finally, we can use the given information to find the ratio between red and purple:
5 purple = 2 red
=> red/purple = 5/2
To find the ratio between yellow and red, we can combine these ratios and simplify:
green/yellow = 6/5
=> yellow/green = 5/6
purple/green = 4/3
=> green/purple = 3/4
red/purple = 5/2
=> purple/red = 2/5
yellow/green * green/purple * purple/red = yellow/red
(5/6) * (3/4) * (2/5) = 1/2
Therefore, the ratio between yellow to red is 1 to 2 or 1:2. Answer: not listed.
To learn more about probability from the given link:
https://brainly.com/question/30034780
#SPJ1
Ed has to take a 6 question multiple choice test quiz for his sociology class. Each question has 4 choices for answers, of which only one is correct. Assuming that Ed guesses on all 6 questions, what is the probability that he will answer:
1) 6 questions correctly = .00024
2)exactly two questions correctly =.29663
3) at least two questions correctly= .46606
As you can see I already have the answers. Can you please show the methods for how they were answered?
1) probability that Ed will answer all 6 questions correctly is approximately 0.00024.
2) probability that Ed will answer exactly 2 questions correctly is approximately 0.29663.
3) probability that Ed will answer at least 2 questions correctly is approximately 0.46606.
What is Probability?
Probability is the study of the chances of occurrence of a result, which are obtained by the ratio between favorable cases and possible cases.
1) Probability of answering 6 questions correctly:
Since there are 4 choices for each question, the probability of guessing the correct answer for a single question is 1/4.
P(6 correct) = [tex](1/4)^{6}[/tex] = 0.00024414 ≈ 0.00024
So the probability that Ed will answer all 6 questions correctly is approximately 0.00024.
2) Probability of answering exactly 2 questions correctly:
The probability of guessing exactly 2 questions correctly can be calculated using the binomial probability formula:
P(exactly 2 correct) = (6 choose 2) * (1/4)² * [tex](3/4)^{4}[/tex]
P(exactly 2 correct) ≈ 0.29663
So the probability that Ed will answer exactly 2 questions correctly is approximately 0.29663.
3) Probability of answering at least 2 questions correctly:
P(at least 2 correct) = P(2 correct) + P(3 correct) + P(4 correct) + P(5 correct) + P(6 correct)
P(k correct) = (6 choose k) * [tex](1/4)^{k}[/tex] * [tex](3/4)^{(6-k)}[/tex]
where k can be 3, 4, or 5.
P(at least 2 correct) ≈ 0.46606
So the probability that Ed will answer at least 2 questions correctly is approximately 0.46606.
To know more about Probability visit,
brainly.com/question/13604758
#SPJ1
Consider the statement “If you are under age 17, then you cannot attend this movie.”
a. Write the converse.
b. Write the inverse.
c. Write the contrapositive.
a. The converse, inverse and contrapositive are "If you cannot attend this movie, then you are under age 17.", "If you are over age 16, then you can attend this movie." and "If you can attend this movie, then you are not under age 17."
Writing the other versions of the statementThe original statement is an example of a conditional statement, which is a statement of the form "if A, then B." The part that comes after "if" is called the hypothesis, and the part that comes after "then" is called the conclusion.
To find the converse of the statement, we switch the hypothesis and conclusion. The converse of a conditional statement may or may not be true. In this case, the converse is not true.
To find the inverse of the statement, we negate both the hypothesis and conclusion. The inverse of a conditional statement may or may not be true. In this case, the inverse is not true.
To find the contrapositive of the statement, we switch and negate both the hypothesis and conclusion. The contrapositive of a conditional statement is always true if the original statement is true. In this case, the contrapositive is true.
Read more about conditional statements at
https://brainly.com/question/27839142
#SPJ1
(10-1) devide 3 I really need help to get the problem for my homework
Answer: 3
Step-by-step explanation:
Using pemdas we know that the parrenthesis comes first. I will do 10-1=9. Now, I need to divide it by three. 9/3=3. 3 is the answer
A random sale of 40 flower shop customers was surveyed to find customers' favorite flowers. The table shows the results. The shop expects to sell 50 bunches of flowers on Sunday. How many bunches of each flower should the shop order?
Answer:
below
Step-by-step explanation:
To find out how many bunches of each flower the shop should order, we need to calculate the percentage of customers who preferred each flower, and then use that percentage to estimate the number of bunches needed for each flower.
First, we need to calculate the total number of customers who were surveyed:
Total customers surveyed = 8 + 4 + 8 + 20 = 40
Next, we can calculate the percentage of customers who preferred each flower:
Percentage of customers who preferred daisy = (8/40) x 100% = 20%
Percentage of customers who preferred gardenia = (4/40) x 100% = 10%
Percentage of customers who preferred mum = (8/40) x 100% = 20%
Percentage of customers who preferred rose = (20/40) x 100% = 50%
Now, we can use these percentages to estimate how many bunches of each flower to order.
Let's assume that each bunch contains 10 flowers (this is just an example, the actual number may vary):
Number of bunches of daisy to order = 20% of 50 bunches = 10 bunches
Number of bunches of gardenia to order = 10% of 50 bunches = 5 bunches
Number of bunches of mum to order = 20% of 50 bunches = 10 bunches
Number of bunches of rose to order = 50% of 50 bunches = 25 bunches
So, the shop should order 10 bunches of daisy, 5 bunches of gardenia, 10 bunches of mum, and 25 bunches of rose to meet the expected demand on Sunday.
find the solution -b2+2b=0
The solutions to the equation -b² + 2b = 0 are b = 0 and b = 2.
What is equation?An equation is a mathematical statement that shows that two expressions are equal. It consists of two sides, a left-hand side (LHS) and a right-hand side (RHS), which are connected by an equals sign (=). The expressions on each side of the equals sign can be made up of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. An equation can be solved to find the value of the variable(s) that makes both sides of the equation equal.
To find the solution of -b²+ 2b = 0, we can use algebraic manipulation as follows:
-b² + 2b = 0
Factor out -b:
-b(b - 2) = 0
From this equation, we see that either -b = 0 or b - 2 = 0:
-b = 0 or b - 2 = 0
Solving for b in each case, we get:
-b = 0 --> b = 0
b - 2 = 0 --> b = 2
Therefore, the solutions to the equation -b² + 2b = 0 are b = 0 and b = 2.
To know more about equation visit:
https://brainly.com/question/29174899
#SPJ1
Which missing x-value would make the table a function?
we can replace the second occurrence of x = -2 with x = 1:
What is function?
In mathematics, a function is a relationship between two sets of elements, called the domain and the range, such that each element in the domain is associated with a unique element in the range.
For the table to be a function, each x-value must correspond to a unique y-value. To determine the missing x-value, we need to find if there are any repeated x-values with different y-values.
The x-value 3 is paired with y-values -3 and -1, which means that the table is not a function. Therefore, we need to replace one of the x-values that appears twice with a different value.
Since x = 0 is already paired with y = 5, we cannot use 0 as the replacement. The only other x-value that appears more than once is x = -2. Therefore, we can replace one of the occurrences of x = -2 with a different value.
For example, we can replace the second occurrence of x = -2 with x = 1:
x y
3 -3
1 4
-2 -1
-2 -2
0 5
Now each x-value corresponds to a unique y-value, so the table represents a function.
To learn more about functions from the given link:
https://brainly.com/question/12431044
#SPJ1
Whats the answer. There is a sreenshot attached.
Answer:
a) 5x/16
b) x = 32
Step-by-step explanation:
a) x/8 + 3x/16 can be simplified by getting a common denominator. x/8 can be changed like this:
x/8 × 2/2 is 2x/16
now we have:
2x/16 + 3x/16
= 5x/16
b) solve x/8+3x/16=10
change the left side of the equation as in part a.
5x/16 = 10
multiply both sides of the equation by 16
5x = 160
divide by 5
x = 32
which of the following describes the graph
Therefore, the graph of the given set is: closed circles on 1 and 4 with a line segment between.
How should an equation be set up to determine the value of x?A common form for an algebraic expression is one of the following: addition, subtraction, multiplication, or division. Simplify the values to determine the result.
The expression (x I x ≤ 1) U (x I x ≥ 24) represents the set of all values of x that are less than or equal to 1 or greater than or equal to 24.
the graph of this set will have a closed circle at x=1 and a closed circle at x=24
The arrows pointing outward indicate that the set continues indefinitely in both directions.
To know more about line segment visit:-
https://brainly.com/question/30072605
#SPJ1
A chef makes batches of dumpling wrappers for shrimp dumplings. She uses 2 cups of flour
for each batch and a total of an additional cup of flour to keep the dough from sticking.
She uses 21 cups of flour to make n batches of dumpling wrappers. How many batches of
dumpling wrappers does the chef make?
Answer:
7 batches
hope this helps
Step-by-step explanation:
1 n (batches of dumpling wrappers) = 3 cups flour
n = 21 / 3
n = 7
The chef can make 7 batches of dumpling wrappers :D.
secQ=
2√6
Q
9
Help answer!!
Answer: the simplified form of sec(Q) is sqrt(24/7).
Step-by-step explanation: The equation secant of angle Q is equal to two multiplied by the square root of six and divided by nine.
In order to reduce the complexity of the given mathematical expression, it is possible to employ the fundamental definition of secant, which states that:
The trigonometric identity denoted as sec(Q) equals the reciprocal of the cosine function evaluated at the angle Q. More precisely, sec(Q) = 1 / cos(Q).
The value of cos(Q) may be determined through the utilization of the Pythagorean identity.
The present mathematical equation demonstrates a fundamental identity in trigonometry, wherein the squares of the sine and cosine functions are summed to equal one. Written symbolically, the equation can be expressed as sin^2(Q) + cos^2(Q) = 1.
Given the condition that sec(Q) is positive, it is ascertainable that Q is situated within the first or fourth quadrant, wherein the cosine of Q is likewise positive. Consequently, the derivation for the solution of the cosine of the angle Q can be expressed as follows:
The trigonometric identity expressed as cos(Q) = sqrt(1 - sin^2(Q)) is a fundamental result in the field of mathematics. This particular equation provides a relationship between the cosine and sine functions of angle Q. Specifically, it states that the cosine of an angle Q is equal to the square root of one minus the sine squared of the same angle Q. The use of such identities is common in mathematical analysis and applied sciences, where it allows for efficient manipulation of trigonometric functions and the mathematical modeling of a variety of physical phenomena.
The following mathematical expression can be written in an academic style: Cosine of angle Q can be expressed as the square root of one minus the square of nine divided by twice the square root of six, i.e., cos(Q) = √(1 - (9/2√6)^2), while substituting the value of sine of angle Q as being equal to nine divided by twice the square root of six (i.e., sin(Q) = 9/2√6).
The mathematical expression cos(Q) = sqrt(1 - (81/24)) may be represented in a more academic manner. Specifically, it may be articulated as follows: the cosine of angle Q is equivalent to the square root of one subtracted by the quotient of 81 and 24. This revision lends itself to a more formal and precise mode of communication, which is characteristic of academic writing.
The mathematical expression cos(Q) = √(7/24) can be represented in a formal and academic manner.
The value of secant of angle Q can now be determined as:
The trigonometric function defining the secant of an angle Q is expressed as sec(Q) = 1/cos(Q).
The trigonometric function, sec(Q), can be expressed as the reciprocal of the square root of 7/24.
The mathematical statement, sec(Q) = sqrt(24/7), can be expressed in a formal and academic manner as follows. The reciprocal of the cosine function of the angle Q is equivalent to the square root of the fraction 24 over 7.
A hamster runs at a speed of 16 centimeters per second in a wheel of radius 15 centimeters.
a) What is the angular velocity of the wheel? (in radians/sec)
b) How fast will the wheel spin in revolutions per minute?
a) The angular velocity of the wheel is approximately 1.0667 radians per second. b) The wheel will spin at approximately 10.16 revolutions per minute.
What is angular velocity?Angular velocity is a measure of how quickly an object rotates or revolves around a fixed point, such as an axis or a center of rotation. It is a vector quantity that describes the rate of change of an object's angular position with respect to time, and is usually expressed in units of radians per second (rad/s) or degrees per second (deg/s).
According to given information:a) To find the angular velocity of the wheel, we can use the formula:
angular velocity = linear velocity / radius
In this case, the linear velocity of the hamster is 16 centimeters per second, and the radius of the wheel is 15 centimeters. So, we have:
angular velocity = 16 / 15
angular velocity = 1.0667 radians per second
Therefore, the angular velocity of the wheel is approximately 1.0667 radians per second.
b) To find the speed of the wheel in revolutions per minute, we need to convert the angular velocity from radians per second to revolutions per minute. There are 2π radians in one revolution, and 60 seconds in one minute. So, we can use the following formula:
angular velocity (in revolutions per minute) = angular velocity (in radians per second) * 60 / 2π
Plugging in the angular velocity we found in part (a), we get:
angular velocity (in revolutions per minute) = 1.0667 * 60 / 2π
angular velocity (in revolutions per minute) ≈ 10.16 revolutions per minute
Therefore, the wheel will spin at approximately 10.16 revolutions per minute.
To know more about angular velocity visit:
https://brainly.com/question/15154527
#SPJ1
PLSSS HELP ME ITS DUE TOMORROW!!!!!
A group of six student's in Mrs. Turner's class is working on a project. The number of hours that each student worked is shown below.
3 hours
5 hours
4 hours
4 hours
2 hours
5 hours
Which statement describes the mean number of hours worked?
The statement that describes the mean number of hours worked through which the relation is satisfied is The mean is the highest number or hours worked by any students in the group
What about mean?
In mathematics, the mean is a measure of central tendency that represents the average value of a set of numbers. It is often called the arithmetic mean, and it is calculated by adding up all the values in the set and then dividing the result by the total number of values.
The formula for the mean is:
mean = (sum of all values) / (total number of values)
For example, suppose we have a set of four numbers: 2, 5, 8, and 11. To find the mean of this set of numbers, we add them up and divide by the total number of values:
mean = (2 + 5 + 8 + 11) / 4
mean = 26 / 4
mean = 6.5
Therefore, the mean of this set of numbers is 6.5. The mean is a commonly used measure of central tendency in statistics and data analysis, and it provides a way to summarize the general trend or average of a data set.
According to the given information:
Mean of the given condition is,
⇒ [tex]\frac{3 + 5 + 4 + 4 + 2 + 5}{6}[/tex]
⇒ [tex]\frac{23}{6}[/tex]
⇒ 3.83 mean of the given condition.
So, it indicate that The mean is the highest number or hours worked by any students in the group.
To know more about mean visit:
https://brainly.com/question/31101410
#SPJ1
find the smallest number that is a multiple off all 2,3,4,5,6,8 and 9
The sum of 2/3 and five times a number is equal to 5/6 subtracted from six times the number. Find the number.
What is the height, h, of the rectangular prism shown below?
Round your answer to the nearest tenth.
h
The height is
4
√34
units.
3
The height is 3 units.
We have,
l = 4 and b= 3
Using Pythagoras theorem
d² = l² + b²
d² = 4² + 3²
d² = 16 + 9
d² = 25
d= 5 unit
let h be the height.
Again, using Pythagoras theorem
34 = 25 + h²
h² = 9
h= 3 unit
Learn more about Pythagoras theorem here:
https://brainly.com/question/343682
#SPJ1
Find the area of the figure. Round to the nearest hundredth when necessary.
6in
14in
26in
15in
The answer is 1,764 in^2
HELP ME OUT PLEASE
Is this statement true or false ?
Area is the distance around the outside of a circle
4. Assuming that the rectangles have whole number side lengths, why is it possible to draw two different rectangles that have an area of 30 square inches but not possible to draw two rectangles with an area of 7 square inches?
Answer:
hm
Step-by-step explanation:
The reason why it is possible to draw two different rectangles that have an area of 30 square inches is that there are multiple pairs of whole numbers that multiply to 30. For example, a rectangle with dimensions 5 inches by 6 inches has an area of 30 square inches, and so does a rectangle with dimensions 2 inches by 15 inches.
However, the number 7 is a prime number, which means it can only be divided evenly by 1 and itself. Therefore, the only way to get an area of 7 square inches for a rectangle is by multiplying 1 and 7, which means the dimensions of the rectangle would be 1 inch by 7 inches. Since there are no other pairs of whole numbers that multiply to 7, it is not possible to draw two different rectangles with an area of 7 square inches.
Nate is renting a compact car for 8 days and wants to buy the additional insurance. Using the information below, what is the total cost of the car rental if Nate fills the gas tank before he returns the car? Vehicle Type Daily Rental Rate Compact $56 Luxury Sedan $75 SUV $98 Minivan $90 Optional insurance cost is $10 per day. Gasoline charge of $3.50 per gallon if car returned not full.
the total cost of the car rental for Nate if he rents a compact car with the optional insurance and fills up the gas tank before returning the car would be $[tex]570.[/tex]
What is the total cost?To calculate the total cost of the car rental, we need to first determine the rental rate for a compact car for 8 days, including the optional insurance.
The daily rental rate for a compact car is $ [tex]56,[/tex] and the optional insurance costs $10 per day. Therefore, the total daily cost of renting a compact car with insurance is:
[tex]56 + 10 = 66[/tex]
To determine the total cost of renting the compact car for 8 days, we simply multiply the daily cost by the number of days:
[tex]66 \times 8 = $528[/tex]
Next, we need to determine the cost of gasoline if Nate returns the car without a full tank. The gasoline charge is $ [tex]3.50[/tex] per gallon, but we don't know how many gallons Nate will need to fill up the tank.
If we assume that a compact car has a gas tank capacity of around 12 gallons, and that Nate will need to refill the tank to its full capacity, then the gasoline charge would be:
$[tex]3.50 \times 12 = $42[/tex]
Finally, we can calculate the total cost of the rental, including the optional insurance and the gasoline charge if Nate returns the car without a full tank:
$[tex]528 + $42 = $570[/tex]
Therefore, the total cost of the car rental for Nate if he rents a compact car with the optional insurance and fills up the gas tank before returning the car would be $[tex]570[/tex].
Learn more about cost here:
https://brainly.com/question/30045916
#SPJ1
7.) Adult tickets for Disney on Ice are $6.50 while a child's ticket is only $2.50. At Tuesday night's
performance, 435 people were there in attendance. The box office brought in $1667.50 for that evening.
How many of each type of ticket were sold?
Answer:
Adult tickets: 145
Child tickets: 290
Step-by-step explanation:
Let x = adults; y = children
[tex]\left \{ {{x + y=435} \atop {6.50x+2.50y=1667.50}} \right.[/tex]
=> x = adults = 145
y = children = 290
Write an Algebraic Equation for each problem (include a let statement) and use it to solve the world problem
On number is eight less than five times another. If the the sum of the two numbers is 28, find the two numbers.
The smaller number is __.
The larger number is __.
The smaller number is 6 .
The larger number is 22
To solve this problem
Let's let x be the smaller number and y be the larger number.
From the problem, we know that one number is eight less than five times the other, so we can write:
y = 5x - 8
We also know that the sum of the two numbers is 28, so we can write:
x + y = 28
Now we have two equations in two variables. We can solve for one of the variables in terms of the other, and substitute that expression into the other equation to eliminate one variable.
Let's solve the first equation for x
x = (y + 8)/5
Now we can substitute this expression for x into the second equation:
(y + 8)/5 + y = 28
Multiplying both sides by 5 to eliminate the fraction, we get:
y + 8 + 5y = 140
Combining like terms, we get:
6y + 8 = 140
Subtracting 8 from both sides, we get:
6y = 132
Dividing both sides by 6, we get:
y = 22
Now we can use the equation y = 5x - 8 to solve for x:
22 = 5x - 8
Adding 8 to both sides, we get:
30 = 5x
Dividing both sides by 5, we get:
x = 6
Therefore, the smaller number is 6 and the larger number is 22.
Learn more about Algebraic Equation here : brainly.com/question/24875240
#SPJ1
Find the value of x. Write your answer in simplest form.
Answer:
C
Step-by-step explanation:
using the sine ratio and the exact value
sin45° = [tex]\frac{1}{\sqrt{2} }[/tex] , then
sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{5}{x}[/tex] = [tex]\frac{1}{\sqrt{2} }[/tex] ( cross- multiply )
x = 5[tex]\sqrt{2}[/tex]
Does standard deviation means independent events
Standard deviation does not mean independent events.
Does standard deviation means independent events?No, the standard deviation is a measure of the spread or variability of a set of data. It measures how much the individual data points in a dataset deviate from the mean or average of the dataset.
Independence, on the other hand, refers to the relationship between two or more events, where the occurrence of one event does not affect the probability of the other event occurring.
Standard deviation is not directly related to the concept of independence. However, when calculating the standard deviation of a dataset, it assumes that each data point is independent and identically distributed. This means that the value of one data point does not affect the value of another data point, and that each data point is drawn from the same underlying distribution.
Learn more on standard deviation here;
https://brainly.com/question/24298037
#SPJ1
Differentiate implicit function containing product and quotients. d/dx (3x^2 y^3)
Answer:
6xy^2 + 9(xy)^2.dy/dx
Step-by-step explanation:
d/dx(3x^2.y^3)=
3y^2.d/dx(x^2) + 3x^2.d/dx(y^3) [Using uv rule, d/dx(uv)=u.dv/dx +v.du/dx]
= 3y^2.2x + 3x^2.3y^2.dy/dx
= 6xy^2 + 9(xy)^2.dy/dx
Use the image to determine the direction and angle of rotation.
graph of triangle ABC in quadrant 4 and a second polygon A prime B prime C prime in quadrant 3
90° clockwise rotation
90° counterclockwise rotation
180° clockwise rotation
360° counterclockwise rotation
The direction and angle of rotation include the following: B. 90° counterclockwise rotation.
What is a transformation?In Mathematics and Geometry, a transformation is the movement of a point from its initial position to a new location. This ultimately implies that, when a geometric figure or object is transformed, all of its points would also be transformed;
What is a rotation?In Mathematics, a rotation refers to a type of transformation which moves every point of the object through a number of degrees around a given point, which can either be clockwise or counterclockwise (anticlockwise) direction.
By critically observing the geometric figures, we can reasonably infer and logically deduce that the pre-image was rotated counterclockwise to produce the image.
Read more on transformation here: https://brainly.com/question/10754933
#SPJ1
A baseball team has the starting and relief pitchers shown in the table. The manager selects a pitcher at random. Find the probability that the pitcher is left-handed.
Pitchers on Baseball Team (Table)
Pitchers Number
Left-handed starters 1
Right-handed starters 4
Left-handed relievers 2
Right-handed relievers 1
Okay, here are the steps to find the probability the randomly selected pitcher is left-handed:
1) There are 1 left-handed starter, 4 right-handed starters, 2 left-handed relievers and 1 right-handed reliever.
2) In total, there are 1 + 4 + 2 + 1 = 8 pitchers.
3) Of the 8 pitchers, 1 + 2 = 3 are left-handed.
4) So the probability the randomly selected pitcher is left-handed = (3/8) = 3/8 = 0.375
Therefore, the probability that the randomly selected pitcher from the team is left-handed is 0.375.
Let me know if you have any other questions!
At a local play, student tickets cost $6 each and adult tickets cost $11 each. If ticket sales were $3,000 for 400 tickets, how many students attended the play?
120
180
220
280
Answer:
If ticket sales were $3,000 for 400 tickets then 280 students attended the play.
Step-by-step explanation:
Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options.
x2 + (y – 3)2 = 36
x2 + (y – 5)2 = 6
(x – 4)² + y² = 36
(x + 6)² + y² = 144
x2 + (y + 8)2 = 36
Answer: option (a) and option (e).
Step-by-step explanation:
Answer:
(a) and (e) are correct
Step-by-step explanation:
(a) x² + (y - 3)² = 6²
(b) x² + (y - 5)² = (√6)²
(c) (x - 4)² + y² = 6²
(d) (x + 6)² + y² = 12²
(e) x² + (y + 8)² = 6²
The general equation of a circle is:
(x - a)² + (y - b)² = r², where (a, b) represents the x-y coordinates of the centre, and r represents the radius.
Hence, by process of elimination, the options that have a diameter of 12 units and therefore, a radius of 6 units, are (a), (c), and (e).
Therefore, the correct choices are (a), and (e), as (c) has a circle centre of (4,0) and does not lie on the y-axis.